Help please 2000 vette with big cam

[nchristian]

I got a 2000 vette that i installed a 237/242 .603/.609 112lsa. Im trying to do the auto ve. can get the car to idle right. I need a little help to maybe get to the ve where the car will idle. look be low for the tune file

[Techie]

Does this help at all

http://www.holdencrazy.com/EFILive/modifiedTunes.php

[WeathermanShawn]

Your VE Table (Airflow Model) at 400-1200 Rpm's looks incredibly high for a car with such a large cam.

Those values most likely would equate to more fueling at Idle than one would want. Normally, that would bog your car and then it would stall. My set-up is not as wild as yours, and my VE Table 'values' at Idle Rpm and MAP are ~40% (EFILive units).

Give it far less fuel..perhaps more Desired Airflow, once you have your fueling worked out.

Any tuning log(s) you have would also help.

[bink]

I have a tune for a 239/251 on a 106 at home - 2001 346cu, Z06. It's a pretty well developed tune (100s of iterations) :D I'll post it later today.

[WHYTRYZ06]

i had that cam in my car..its am MS3...I THINK I STILL HAVE THE TUNE

[bink]

here you go! :D

[SirNemesis]

The desired idle speeds {B4603} look to be way too low for that size cam.

[bink]

The desired idle speeds {B4603} look to be way too low for that size cam.
Actually, you can tune it a lot lower than that 1200 - I have. It will idle at 800 (stock). :D

[SirNemesis]

Actually, you can tune it a lot lower than that 1200 - I have. It will idle at 800 (stock). :D

Agreed, but around 700rpm cold with an auto might be asking for trouble :)